Loom-driving mechanism



LOOII DRIVING MECHANISM Filed July 12 1921 2 Shoots-Sheet 1 Sep 1.1925

L. JENCKES mo: muvma lpcwmxsu 2 Sheath-31 1001. 2

Filed an -12, 1921 Patented Sept. 1, 1925.

mural) STATES.

PATENT "omen.

LAWRENCE B. JENGKES, O'F "\NORQESTER, MASSACHUSETTS, ASSIGNOR TOCROMPTON & KNOWLES LOOM 'WORK'S, OF WORCESTER, MASSACHUSETTS, ACORPORATION OF MASSACHUSETTS.

LOOM-DRIVING MECHANISM.

Application filed July 12, 1921. Serial No. 484,228.

. To all whom it may concern:

Be it known that I, LA R NCE B. JnNoKEs, a. citizen of the UnitedStates, residing at WVorcester, in the county of Worcester and State ofMassachusetts, have invented a new and useful Loom-Driving Mechanism, of

which the following is a specification.

This invention relates to a driving mechanism for loomswhichare used forweaving very wide heavy fabrics in which looms the parts are subjectedto unusually heavy strains. It is the general practice in loom buildingto apply ower at one end only of the loom. Much difficulty has beenencountered however in these wide heavy looms because of the spring andyield of theparts which transmit the power across the loom. This hascaused serious trouble in the operation of the picking mechanism at theremote side of the loom, as it is necessary that the pick should besubstantially identical and accurately timed on 'bothsides of the loom.Ituis the general object of my invention to provide for more uniformoperation of the mechanism by supplying power from two independent unitsto the two ends of the loom and it is a. further object of my inventionto provide novel devices for equalizing the application of power bythese independent units, I

With these general objects in view my invention relates moreparticularly to certain arrangements and, combinations of parts whichwill be hereinafter described and more particularly pointed out in theappended claims.

A preferred form of my invention is shown in the dnawings in which iFig. 1 is a partial front elevation of a.

loom embodying my improvements;

Fig. 2 is a right hand side elevation of the parts shown in Fig. 1; p

Fig. 3 is a partial sectionial elevation taken along the line 33 in Fig.1; and

Fig. 4 is a diagrammatic view of the connections from one of the shipperhandles to the two ends of the loom.

Referring to thedrawings, I have shown portions of a loom frame 10supporting bearings for a crank shaft 11 by which the lay is movedthrough the usual crank arms 12. .Sleeyes 13 are rotatably supported onthe crank shaft 11 and picking rolls 14 are mounted to rotate with thesleeves 13 and rolls 14.

are also slidable axially thereon into and out of position to engage thecam plates 15 on the pick shaft 16. The pick, shafts are connected byarms 17 and links 18 to the picker sticks 19. 7 A Y All of these partsare of the usual construction and form no part of my invention,

which relates particularly to the means for applying power to thecrankshaft 11 and to the sleeves 13 I will now describe the driving,mechanism at the right hand side of'the loom. A motor20 is mounted on abase 21 and is provided with a pinion 22 which meshes with a' large gear23 which is loosely mounted to slide on a: shaft 24 rotatable inbearings in the loom frame 10 and in an outer frame which drive thepicking 25 which isrigidly connected to the frame 10 by braces 26. Afriction disc 27 is fixed to the shaft ,24 and suitable controllingmechanism to be described is provided for forcing the gear 23 againstthe disc 27, thus rotating the shaft 24.

A counter shaft 28 extends entirely across I the loom and is supportedin bearings in the main framelO and in the outside frames 25 and 25. VThe shaft 28 is driven from the shaft 24 by apinion 29*011 the shaft.

24 which meshes with a gear 30 on thecounter shaft. 1

V The counter shaft 28 is connected at each Side of the loom to thecrank shaft 11 by pairs of eccentric gears 31 and 32 and is- I alsoseparately connected to each of the sleeves 13 by a pair of elliptical.gears 33 and 34. A second motor 35 is provided at theleft hand side ofthe loom and is similarly connected through a pinion 36 to a gear 37loose on a shaft 38 to which a friction disc 39 is secured. The shaft 38is connected by gears 40 and 41 to the shaft 28 previously described.

I will now describe the devices by which I the gears 23 and 37 are movedagainst the frictionplates 27 and 39, transmitting power to the oppositeends of the shaft 28. Shipper handles 45 and 46 are preferably providedat each side of the loom, the two handles of the lever 49 is connectedby a link 51 to one arm of a bell crank 52 which is pivoted at 53 andsupports an equalizing lever 54.

One arm of the lever 5% is connected by a link 55 and bell crank 56 andlink 57 to a lever 58 pivoted at one end on a bracket 59 and having aroll 60 positioned in a circumferential groove in the hub of the gear23. The other arm of the equalizing lever 54 is similarly connected to alever 61 which con trols the position of the gear Springs 62 normallydraw the gears away from the friction plates as clearly indicated inFig. 4. In starting up a loom provided with my improved drivingmechanism, the motors 20 and 35 are first startech thus revolving thesliding gears a3 and 37. One of the shipper levers d5 or 46 is thenmoved to apply tension to the levers 58 and 61 which move the gears intofrictional contact with the discs 27 and 39. The equalizing lever 54;permits the two driving motors to pick up the load without placing anundue share of the load on either motor.

I It will be noted that the two sides of the loom are connectedthroughthe shafts 11 and. 28, so that it is impossible for the parts to varyfrom their timed relation. At the same time the greater portion of thepower at each side is supplied at a point closely adjacent to thecorresponding picking mecha nism and I avoid the diii icnltiesencountered when the power is transmitted through the shafts from oneside of the loom to the other for picking purposes.

Having thus described my invention it will be evident that changes andmodifications can be made therein by those skilled in the art within thespirit and scope of my invention as set forth in the claims and I do notwish to be otherwise limited to the details herein disclosed but what Iclaim 1.111 a loom, connected driving mechanism operating at both sidesof the loom, separate power-applying devices at each side of the loom,and friction connections between said devices and said mechanism at eachside of the loom.

2. In loom, connected driving mechanism operating at both sides of theloom, separate power-applying devices at each side of the loom, frictionconnections hetwcen said devices and said mechanism at cach side of theloom a manual controller for said connections, and an equalizer betweensaid controller and said connections.

3. In a icon), connected driving mechanism operating at both sides ofthe loom, separate power-applying devices at each side of the loonnfriction connections between said devices and said mechanism at eachside of the loom, a manual controller for said connections, linkagebetween said controller and said connections, and an equalizing lever insaid linkage.

at. In a loom, connected driving 1necha nism operating at both sides ofthe loom, a separate electric motor at each side of the in in anddriving connections between each motor and said mechanism.

in a loom, connected driving mechaism operating at hoth sides of theloom, a separate electric motor at each side of the 106th, drivconnections uetwecn each 1110- tor and said i echanisni, and a singleinanval controller for said connections.

In testimony whereof I have hereunto aiiined my signature.

niuvnnnon B. JENCKES.

